Method of improving textile fibers, threads, and fabrics.



eus'rav knamm'a, or o'o'noem Gallium;-

mE'rrron-or mrnovmd'rnx mnn FIBERS, means; hunrmnms;

No Drawing.

Specification Letters Patent. Application filed a .24, 1901. semi no. 880,518.

To all whom it may concern:

Be itlknown that I, GUs'rA'v Knanzimn, a

citizen of the Empire of Germany, residing at Cologne-on-the-R-hine, in the Empire of- Grermany,have invented a new and useful Method of Improving Textile Fibers, Threads, and Fabrics, of whichthe following is a specification. j

. In my British Patent No. 26,261 of the year' 1905 I have described a process of producing transparent coatings on pa er, pasteboard, card-board, timber and the ike, which coatings are impermeable to dampness and remain always supple. prepared and applied to the said objects and,

A certain mixture is the latter are exposed for a short time to the pressure of warm press ng plates.

My invention consists of the impregnation of textile fibers,'threads or fabrics with the said mixture and of drying them either in the air or bymeans of warm pressing rollers or plates orth'e like. Thereby they are given important and valuable properties, as will hereinafter be set forth.

- The above mentioned mixture is formed as followsz A solution of nitro-cellulose, gun'- cotton or other soluble pyroxylin for the preparation of collodion is mixed not only with chlorhydrins (ilichlorhydrins, epichlorhydrins), which are derivatives of the glycerin, but also with aromatic derivatives of sulfoacids which may be derived from esters, chlorids and amids. By the term F sulfo-acid is meant an organic compound which possesses aradical of sulfuric acid or sulfurous acid. A very suitable mixture of the said kind may be produced in the following manner: 100 parts of soluble pyroxylin for the preparation of collodron are dissolved in 450parts of alcohol and 350 parts of acetone and to this solution are added 50 to parts of dichlorhydrin and about 25 to 35 parts of an. aromatic derivative of a sulfo-acid, for instance the p'-toluolsul'fo-chlorid.

l The teTttile fibers, threads or treated are impregnated with the mixture in any known manner and are then dried. If they are to be dim, they are simply airdried orr-wind-dried, but if they are to with an aromatic derivative-o fabrics to be The so treated fibers, threads or fabricswill show but a slight shortening. Trials prove,

that threads of linen, cotton, jute and the Patented Dec. -'}7 ,21%909.

receive a brilliant 1ust'er,they are dried. by means of warm pressing cylinders 01' plates or rollers or the like many known manner.-

like impregnated with the mixture and dried possess a silky appearance or luster and a 4 considerably increased tensile strength, While owing to the suppleness of their coating they retain their full capability of being 'woven or otherwise treated. The'latter propertyas the more important, as it-is possible to obtain in this manner fabrics, which satisf increased requirements as regards strengt and resistance against dampness. The fabrics obtained by spinning and weaving or otherwise 'pre aring the fibers or threads treated in the a ove described process are useful for various purposes, for example borders and hem laces on womens clothes, which owing to their impermeability to water can be Washed off at any .timewhile ermanently sustaining their silky luster. t-is even possible to add colors to the mixture for simultaneously coloring and impregnating the textile fibers, threads or abrics'.

ll claim:

' 1. The niethod of improving textile fibers, threads or fabrics, which consists im mix'-' ing a solution of nitro-cellulose with chlorhydrin (derivative of the glycerin) and with an aromatic in impregnating with this mixture the textile matters, and in drying the latter.

2. Themethod of improving'textile fibers, threads or fabrics, which consistsin mixing a solution of intro-cellulose with chlorhydrin (derivative of the lycerin) and i a sulfo-acid, in impregnating with this mixture the textile matters, and in dryin the latter by means of warm pressing ro ers or, the like. 3. The method of improving textile fibers, threads on fabrics, which consists in mixing a solution of nitro-cellulose with chlorhydrin (derivative of the glycerin) and with an aromatic derivative ofa sulfo-acid while adding a color, impregnating with derivative of a sulfo-acido 

